Adjuvant chemotherapy for high grade soft tissue sarcomas is controversial. Given the fact that approximately 50% of patients receiving optimum treatment will recur in three years and die of recurrence within five years, smarter adjuvant options are needed. One such treatment option would be to "differentiate" the high grade sarcoma into a low grade sarcoma upon recurrence. This differentiation effect will reduce the risk of subsequent death by 50% as determined by the overall survival difference between high grade/poorly differentiated and low grade/ well differentiated sarcomas. Given that differentiation takes place on a time scale that is significantly longer than cytotoxic effects, the optimum time to initiate differentiation therapy is in the adjuvant setting; when the time to disease recurrence is measured in months to years.